CN201952155U - Mine winch preventing from magnifying slip - Google Patents
Mine winch preventing from magnifying slip Download PDFInfo
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- CN201952155U CN201952155U CN 201120058379 CN201120058379U CN201952155U CN 201952155 U CN201952155 U CN 201952155U CN 201120058379 CN201120058379 CN 201120058379 CN 201120058379 U CN201120058379 U CN 201120058379U CN 201952155 U CN201952155 U CN 201952155U
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- electromagnetic valve
- pipeline
- winch
- bit triplet
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Abstract
The utility model provides a mine winch preventing from magnifying slip, which comprises a winch body, a hydraulic system and a control system, wherein the winch body comprises a disc brake; the hydraulic system comprises a first pipeline and a second pipeline; the first pipeline is connected with the movable roller of the disc brake; the second pipeline is connected with a dead block of the disc brake; a first manual brake is connected with the pipeline in series; a second manual brake is connected with the second pipeline in series; and a pressure relief protection solenoid valve is connected to the first pipeline between the first manual brake and the movable roller and the second pipeline between the second manual brake and the dead block, and is connected with the control system. In the mine winch, with the pressure relief protection solenoid valve, even if the first and /or second manual brake is closed, the pressure relief protection solenoid valve is conducted through the control system to unload hydraulic oil in the disc brake, so that the disc brake is smoothly opened to brake, which prevents the magnifying slip accidents.
Description
Technical field
The utility model relates to the winch technical field, relates in particular to a kind of mining sliding winch that prevents to amplify.
Background technology
At present, the large-scale winch of China's coal-mine mostly adopts the PLC control system to control, and generally all is provided with reliability and the safety that protection and locking improve total system in the PLC control system.But, be not provided with about winch always and prevent to amplify sliding comprehensive judgement protection link.
The existing measure that prevents that the winch amplification from sliding is, adopt the emergency stop push button on the driving position artificially to control,, then push the winch emergency stop button on the driving position immediately in case the driver finds that winch is about to amplification and slides, come winch is braked, prevent to amplify sliding purpose to reach.But, when the mine lift winch when transferring rope form attitude or deciliter power-transfer clutch, because operating sequence complexity, maloperation very easily takes place in hoistman and check man, and closes the manual brake that is positioned at plate disc brake the place ahead, when manual brake is in closed condition by maloperation, hydraulic oil in the plate disc brake can't unload, make winch to brake, it is sliding to cause winch to amplify, and has brought serious consequence for the safety in production of mine.
The utility model content
The utility model provides a kind of mining sliding winch that prevents to amplify, and when solving that manual brake is in closed condition by maloperation in the prior art, the hydraulic oil in the plate disc brake can't unload, and makes winch to brake, and causes winch to amplify sliding problem.
The utility model provides a kind of mining sliding winch that prevents to amplify; comprise the winch body; hydraulic efficiency pressure system and control system; described winch body comprises plate disc brake; described hydraulic efficiency pressure system comprises movable drum bonded assembly first pipeline that is used for described plate disc brake; and be used for dead block bonded assembly second pipeline with described plate disc brake; be serially connected with first manual brake on described first pipeline; be serially connected with second manual brake on described second pipeline; be connected with the decompression protection electromagnetic valve on first pipeline between described first manual brake and described movable drum and on second pipeline between described second manual brake and described dead block, described decompression protection electromagnetic valve is electrically connected with described control system.
The aforesaid mining sliding winch that prevents to amplify; wherein; be connected with the 3rd manual brake between described first pipeline and described second pipeline; described the 3rd manual brake is connected with described decompression protection electromagnetic valve; described the 3rd manual brake and the described first pipeline bonded assembly position are between described first manual brake and described movable drum, and described the 3rd manual brake and the described second pipeline bonded assembly position are between described second manual brake and described dead block.
The aforesaid mining sliding winch that prevents to amplify, wherein, described decompression protection electromagnetic valve is the 2/2-way normally closed solenoid valve.
The aforesaid mining sliding winch that prevents to amplify, wherein, described control system is the PLC control system.
The aforesaid mining sliding winch that prevents to amplify, wherein, described hydraulic efficiency pressure system comprises first, second oil pumping system, described first, second oil pumping system is connected with the oil inlet of same two-bit triplet hydraulicchange-over valve, the actuator port of described two-bit triplet hydraulicchange-over valve is connected with the first two-bit triplet electromagnetic valve, the actuator port of the described first two-bit triplet electromagnetic valve is communicated with described first manual brake, the return opening of the described first two-bit triplet electromagnetic valve is connected with time delay valve, the actuator port of described time delay valve is connected with the second two-bit triplet electromagnetic valve, the actuator port of the described second two-bit triplet electromagnetic valve is communicated with described second manual brake, be connected with the first 2/2-way electromagnetic valve between the return opening of the described first two-bit triplet electromagnetic valve and the oil inlet of described time delay valve, the actuator port of the described first 2/2-way electromagnetic valve is connected with fuel tank, be connected with the second 2/2-way electromagnetic valve between the oil inlet of the actuator port of described time delay valve and the second two-bit triplet electromagnetic valve, the actuator port of the described second 2/2-way electromagnetic valve is connected with described fuel tank, and described first, the second two-bit triplet electromagnetic valve and first, the second 2/2-way electromagnetic valve all is electrically connected with described control system.
The aforesaid mining sliding winch that prevents to amplify wherein, all is connected with electro-hydraulic pressure regulator device in described first, second oil pumping system.
The aforesaid mining sliding winch that prevents to amplify, wherein, described hydraulic efficiency pressure system also comprises hydraulic pressure accent rope unit, described hydraulic pressure transfers the rope unit to comprise double acting hydraulic cylinder, described double acting hydraulic cylinder is connected with the actuator port of two four-way electromagnetic reversing valves, the oil inlet of described two four-way electromagnetic reversing valves is communicated with the 3rd two-bit triplet electromagnetic valve, return opening is connected with described fuel tank, the oil inlet of described the 3rd two-bit triplet electromagnetic valve is communicated with the actuator port of described time delay valve, return opening is connected with described fuel tank, the axis of the described double acting hydraulic cylinder in described winch body upper edge is provided with two travel switches, the piston rod of described double acting hydraulic cylinder is provided with the triggering portion that is used to trigger described travel switch, described triggering portion is positioned between two described travel switches, and two described travel switches all are electrically connected with described control system.
The aforesaid mining sliding winch that prevents to amplify, wherein, the described first 2/2-way electromagnetic valve is the 2/2-way normally open solenoid valve, the described second 2/2-way electromagnetic valve is the 2/2-way normally closed solenoid valve.
The utility model provides miningly prevents to amplify sliding winch; be connected the decompression protection electromagnetic valve on first pipeline between first manual brake and movable drum and on second pipeline between second manual brake and dead block; when even first manual brake and/or second manual brake are in closure state by maloperation; when control system detects the cunning of generation amplification soon; control system is sent control signal; make decompression protection electromagnetic valve dead electricity and conducting; hydraulic oil in the plate disc brake is unloaded and flows back to fuel tank; in plate disc brake under the situation of no oil pressure; plate disc brake is realized smoothly closing a floodgate and is braked, thereby has prevented to amplify the generation of sliding accident.
Description of drawings
Fig. 1 is this mining hydraulic system principle figure that prevents to amplify sliding winch;
Fig. 2 is the mining control system schematic circuit diagram that prevent to amplify sliding winch of the utility model.
Reference numeral:
1,2-oil pump; 4,6-electro-hydraulic pressure regulator device; The commutation of surging of 5-two-bit triplet
Valve;
The 9-time delay valve; K
1, K
2-travel switch; G
1-Di three two-bit triplet electromagnetism
Valve;
G
2-two four-way electromagnetic G
3-the first two-bit triplet electricity G
3'-second two-bit triplet
Change-over valve; Magnet valve; Magnet valve;
G
4-the first 2/2-way G
5-the second 2/2-way electricity G
6-decompression protection electromagnetic valve;
Electromagnetic valve; Magnet valve;
The D-motor; 7-first pipeline; 8-second pipeline;
10-first manual brake; 11-second manual brake; Q11-safety return circuit power supply is opened
Close;
S 18-transfers cord switch; K40-transfers the rope relay; K36, K46, K48, K49,
The K50-relay;
The normally closed S19-lock inspection switch that touches of K15, K16-; K45, K47-clutch position
The point; Relay;
The K60-protective relay; 12-the 3rd manual brake; The 13-double acting hydraulic cylinder.
The specific embodiment
For the purpose, technical scheme and the advantage that make the utility model embodiment clearer, below in conjunction with the accompanying drawing among the utility model embodiment, technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
The utility model provides miningly prevents to amplify sliding winch, comprises winch body, hydraulic efficiency pressure system and control system.
The winch body mainly comprises parts such as base, drive motor, retarder, cylinder and plate disc brake, because the winch body belongs to prior art, its concrete formation and annexation is not given unnecessary details here.
Wherein, hydraulic efficiency pressure system as shown in Figure 1, comprise fuel tank, be connected with two first oil pumping systems that are in parallel and second oil pumping system on the fuel tank, first oil pumping system and second oil pumping system all are made up of series connected filter of oil pipe and oil pump 1,2, oil pump is driven by cooresponding motor D, and, in first oil pumping system and second oil pumping system, all be connected electro-hydraulic pressure regulator device 4,6, and electro-hydraulic pressure regulator device 4,6 is connected on the pipeline of oil pump 1,2 fuel-displaced sides, and the oil pressure that goes out of first oil pumping system and second oil pumping system is regulated.First oil pumping system is connected with the oil inlet of second oil pumping system with same two-bit triplet hydraulicchange-over valve 5, this two-bit triplet hydraulicchange-over valve 5 judges automatically that according to the oil pressure of first oil pumping system and second oil pumping system connecting first oil pumping system still is to connect second oil pumping system.
Actuator port at two-bit triplet hydraulicchange-over valve 5 has connected one first two-bit triplet electromagnetic valve G
3, this first two-bit triplet electromagnetic valve G
3Actuator port on connect on movable drum bonded assembly first pipeline 7, the first pipelines 7 be used for plate disc brake and be serially connected with first manual brake 10, this first two-bit triplet electromagnetic valve G
3Return opening be connected with a time delay valve 9 by oil pipe, the actuator port of this time delay valve 9 is connected with one second two-bit triplet electromagnetic valve G by pipeline
3', this second two-bit triplet electromagnetic valve G
3' actuator port on connect dead block bonded assembly second pipeline 8 be used for plate disc brake, on second pipeline 8, be serially connected with second manual brake 11.First, second two-bit triplet electromagnetic valve G
3, G
3' all be electrically connected with control system, control system is controlled first, second two-bit triplet electromagnetic valve G
3, G
3' keying, realize whole oil circuit set up oil pressure or the unloading oil pressure.The control system here is the PLC control system.
For whole hydraulic circuit is played a protective role, at the first two-bit triplet electromagnetic valve G
3Return opening and the oil inlet of time delay valve 9 between be connected with the first 2/2-way electromagnetic valve G
4, the first 2/2-way electromagnetic valve G
4Actuator port be connected with fuel tank; The actuator port of time delay valve 9 and the second two-bit triplet electromagnetic valve G
3' oil inlet between be connected with the second 2/2-way electromagnetic valve G
5, the second 2/2-way electromagnetic valve G
5Actuator port be connected first, second two-bit triplet electromagnetic valve G with described fuel tank
3, G
3' and first, second 2/2-way electromagnetic valve G
4, G
5All be electrically connected with described control system.The first 2/2-way electromagnetic valve G
4Be normally open solenoid valve, the second 2/2-way electromagnetic valve G
5Be normally closed solenoid valve, when the winch normal operation, the first 2/2-way electromagnetic valve G
4Be in dead electricity oil circuit off-state, the second 2/2-way electromagnetic valve G
5Be in electric oil circuit off-state.This moment, whole hydraulic efficiency pressure system was set up normal operating oil pressure.
Also be connected with hydraulic pressure and transfer the rope unit on the actuator port of time delay valve 9, this hydraulic pressure transfers the rope unit to comprise double acting hydraulic cylinder 13, this double acting hydraulic cylinder 13 and two four-way electromagnetic reversing valve G
2Actuator port connect these two four-way electromagnetic reversing valve G
2Oil inlet and the 3rd two-bit triplet electromagnetic valve G
1Connection, return opening are connected with above-mentioned fuel tank.Described the 3rd two-bit triplet electromagnetic valve G
1Oil inlet be connected with above-mentioned fuel tank with actuator port connection, the return opening of time delay valve 9.Axis along double acting hydraulic cylinder 13 on the winch body is provided with two travel switch K1, K2, the piston rod of double acting hydraulic cylinder 13 is provided with the triggering portion that is used to trigger described travel switch K1, K2, and triggering portion is positioned between two described travel switch K1, the K2, and wherein above-mentioned two travel switch K1, K2 all are electrically connected with described control system.The signal that control system is transmitted according to travel switch K1, K2 comes this double acting hydraulic cylinder 13 of control corresponding flexible, transfers rop exercise to do.
Also have; when when lock overhauls, plate disc brake being overhauled; need divide into groups to overhaul to movable drum and dead block; for preventing when it is divided into groups to overhaul; hydraulic oil in first pipeline 7 and second pipeline 8 circulates mutually; special between first pipeline 7 and second pipeline 8, be connected the 3rd manual brake 12; the 3rd manual brake 12 is connected with the decompression protection electromagnetic valve; and the 3rd manual brake 12 and first pipeline, 7 bonded assembly positions are being stated between first manual brake 10 and the described movable drum, and the 3rd manual brake 12 and second pipeline, 8 bonded assembly positions are between second manual brake 11 and described dead block.When the winch normal operation, the 3rd manual brake 12 is in opening, and at this moment, the decompression protection electromagnetic valve can normally carry out pressure release work after detecting the amplification cunning.When lock overhauls, close the 3rd manual brake 12, be not communicated with between first pipeline 7 and second pipeline 8 this moment, can overhaul separately movable drum and dead block.
Below in conjunction with as shown in Figure 2 control system schematic circuit diagram this mining principle of work of amplifying sliding winch that prevents is introduced.
When winch normally moves, transfer cord switch S18 to be in off-state, safety return circuit source switch Q11 is in closure state.It is electric to transfer this moment the coil of rope relay K 40 and lock maintenance loop to get, winch hardware security loop under failure-free situation relay K 36 electric, its open contact is for closure state.At this moment, the 3rd two-bit triplet electromagnetic valve G
1(reach the mark that hereinafter relates to hydraulic unit herein and see Fig. 1 simultaneously) and two four-way electromagnetic reversing valve G
2Can't get electricly, drum clutch is in closure state, and clutch position relay K 45, K47 get.The first two-bit triplet electromagnetic valve G
3With the second two-bit triplet electromagnetic valve G
3' under the state of the contact K45 adhesive of contact K40 that transfers the rope relay and clutch position relay all, in case open first, second manual brake, first pipeline 7 and second pipeline 8 will be set up oil pressure, promptly can open the movable drum and the dead block of plate disc brake, remove drag, this moment, winch can normally be driven.When the winch normal operation, the second 2/2-way electromagnetic valve gets electric G
5, under the situation of not pulleying, the coil of pulleying relay gets electric its cooresponding normally closed contact K15, K16 disconnection, first 2/2-way electromagnetic valve dead electricity G at this moment that make up and down
4Whole hydraulic circuit can be set up normal oil pressure.
When winch transfers rop exercise to do, transfer cord switch S18 to be in closure state, it is electric to transfer the coil of rope relay K 40 to get, and makes the 3rd two-bit triplet electromagnetic valve G
1Get electric G with two four-way electromagnetic reversing valves
2, and lock inspection switch S19 closure, it is electric that the coil of relay K 48, K49 gets, and makes its normally closed contact disconnect, at this moment the first two-bit triplet electromagnetic valve G
3With the second two-bit triplet electromagnetic valve G
3' dead electricity, double acting hydraulic cylinder carries out expanding-contracting action accordingly, triggering portion on the piston rod of double acting hydraulic cylinder (being power-transfer clutch) when touching arbitrary travel switch relay K 46, K50 get electricly, the normally closed contact of relay K 46 disconnects, then the 3rd two-bit triplet electromagnetic valve G
1Dead electricity transfers the rope process to finish.The first two-bit triplet electromagnetic valve G in whole accent rope process
3With the second two-bit triplet electromagnetic valve G
3' all can't get electric, its to winch normally transfer the rope play a protective role.
Under the winch normal working, the coil of protective relay K60 is not charged, and its normally closed contact is in closure state, at this moment decompression protection electromagnetic valve G
6; its oil circuit is obstructed; make win pipeline 7 and second pipeline 8 can normally set up oil pressure; come brake off, herein protective relay K60 adopts the normally closed contact type, mainly is for when the winch normal operation; can make the coil of protective relay K60 need not be charged; can avoid like this relay being caused damage,, and then improve the whole reliability that prevents to amplify sliding system along with the raising of protective relay K60 functional reliability because of relay coil is long charged.The winch amplification is sliding in case PLC determines, and promptly the output protection signal makes the coil of protective relay K60 charged, attracts its normally closed contact to open, at this moment decompression protection electromagnetic valve G
6Dead electricity, its oil circuit conducting, the hydraulic oil in first pipeline 7 and second pipeline 8 is through decompression protection electromagnetic valve G
6Flow back to fuel tank, reached the purpose of pressure release, do not exist under the situation of oil pressure in first pipeline 7 and second pipeline 8, plate disc brake can be realized normal brake.Because decompression protection electromagnetic valve G
6Be installed in the place ahead that first pipeline 7 and second pipeline 8 are positioned at the mobile direction of first, second manual brake 10,11 hydraulic oil, even first, second manual brake 10,11 is in closed condition by maloperation like this, hydraulic oil in first pipeline 7 and second pipeline 8 also can unload normally, having guaranteed can normal braking, has avoided occurring amplifying sliding problem.
When PLC judged that the winch amplification is sliding, it was that the speed signal according to winch, the accent rope signal of winch and the master of winch make the handle position signal comprehensively judge the feature that amplification is sliding.Make handle be in zero-bit or winch being in when transferring rope or lock inspecting state main, when the speed that detects winch during greater than the sliding critical speed of the amplification of default, then be judged as and amplify sliding omen, control system output speed-slackening signal makes decompression protection electromagnetic valve G
6Dead electricity is braked first pipeline 7 and 8 pressure releases of second pipeline.Amplifying sliding critical speed can determine according to concrete condition of service, for example can be set in the present embodiment to be 0.3m./s, but it can not only be confined to 0.3m./s.Certainly, in order to improve the reliability of system, it is low excessively that the sliding critical speed of amplification herein also cannot be provided with, and the stability that can reduce system when hanging down was set, and occurs misoperation easily, also brakes when causing braking.
In addition, no matter under any mode of operation, amplify sliding omen as long as the speed that detects winch, then is judged as winch greater than 10% of command speed, control system output speed-slackening signal makes decompression protection electromagnetic valve G
6Dead electricity is braked first pipeline 7 and 8 pressure releases of second pipeline.
The judgement of pair twist vehicle speed is to be installed in shaft encoder photosignal on winch main shaft and the drive motor by collection, and transfers to PLC and calculate the speed that obtains final winch.
For the braking of winch, can determine the number of times and the brake lag length of winch braking according to the actual speed of winch, when preventing because of the winch high-speed operation, step braking and cause serious accident.Adopt above-mentioned brake mode to realize braking by grades, played buffer action, make brake percentage more steady.
It should be noted that at last: above embodiment only in order to the explanation the technical solution of the utility model, is not intended to limit; Although the utility model is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of each embodiment technical scheme of the utility model.
Claims (8)
1. one kind miningly prevents to amplify sliding winch; comprise the winch body; hydraulic efficiency pressure system and control system; described winch body comprises plate disc brake; described hydraulic efficiency pressure system comprises movable drum bonded assembly first pipeline that is used for described plate disc brake; and be used for dead block bonded assembly second pipeline with described plate disc brake; be serially connected with first manual brake on described first pipeline; be serially connected with second manual brake on described second pipeline; it is characterized in that; be connected with the decompression protection electromagnetic valve on first pipeline between described first manual brake and described movable drum and on second pipeline between described second manual brake and described dead block, described decompression protection electromagnetic valve is electrically connected with described control system.
2. the mining sliding winch that prevents to amplify according to claim 1; it is characterized in that; be connected with the 3rd manual brake between described first pipeline and described second pipeline; described the 3rd manual brake is connected with described decompression protection electromagnetic valve; described the 3rd manual brake and the described first pipeline bonded assembly position are between described first manual brake and described movable drum, and described the 3rd manual brake and the described second pipeline bonded assembly position are between described second manual brake and described dead block.
3. the mining sliding winch that prevents to amplify according to claim 1 and 2 is characterized in that described decompression protection electromagnetic valve is the 2/2-way normally closed solenoid valve.
4. the mining sliding winch that prevents to amplify according to claim 1 and 2 is characterized in that described control system is the PLC control system.
5. the mining sliding winch that prevents to amplify according to claim 1 and 2, it is characterized in that, described hydraulic efficiency pressure system comprises first, second oil pumping system, described first, second oil pumping system is connected with the oil inlet of same two-bit triplet hydraulicchange-over valve, the actuator port of described two-bit triplet hydraulicchange-over valve is connected with the first two-bit triplet electromagnetic valve, the actuator port of the described first two-bit triplet electromagnetic valve is communicated with described first manual brake, the return opening of the described first two-bit triplet electromagnetic valve is connected with time delay valve, the actuator port of described time delay valve is connected with the second two-bit triplet electromagnetic valve, the actuator port of the described second two-bit triplet electromagnetic valve is communicated with described second manual brake, be connected with the first 2/2-way electromagnetic valve between the return opening of the described first two-bit triplet electromagnetic valve and the oil inlet of described time delay valve, the actuator port of the described first 2/2-way electromagnetic valve is connected with fuel tank, be connected with the second 2/2-way electromagnetic valve between the oil inlet of the actuator port of described time delay valve and the second two-bit triplet electromagnetic valve, the actuator port of the described second 2/2-way electromagnetic valve is connected with described fuel tank, and described first, the second two-bit triplet electromagnetic valve and first, the second 2/2-way electromagnetic valve all is electrically connected with described control system.
6. the mining sliding winch that prevents to amplify according to claim 5 is characterized in that, all is connected with electro-hydraulic pressure regulator device in described first, second oil pumping system.
7. the mining sliding winch that prevents to amplify according to claim 5, it is characterized in that, described hydraulic efficiency pressure system also comprises hydraulic pressure accent rope unit, described hydraulic pressure transfers the rope unit to comprise double acting hydraulic cylinder, described double acting hydraulic cylinder is connected with the actuator port of two four-way electromagnetic reversing valves, the oil inlet of described two four-way electromagnetic reversing valves is communicated with the 3rd two-bit triplet electromagnetic valve, return opening is connected with described fuel tank, the oil inlet of described the 3rd two-bit triplet electromagnetic valve is communicated with the actuator port of described time delay valve, return opening is connected with described fuel tank, the axis of the described double acting hydraulic cylinder in described winch body upper edge is provided with two travel switches, the piston rod of described double acting hydraulic cylinder is provided with the triggering portion that is used to trigger described travel switch, described triggering portion is positioned between two described travel switches, and two described travel switches all are electrically connected with described control system.
8. the mining sliding winch that prevents to amplify according to claim 5 is characterized in that the described first 2/2-way electromagnetic valve is the 2/2-way normally open solenoid valve, and the described second 2/2-way electromagnetic valve is the 2/2-way normally closed solenoid valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120058379 CN201952155U (en) | 2011-03-08 | 2011-03-08 | Mine winch preventing from magnifying slip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120058379 CN201952155U (en) | 2011-03-08 | 2011-03-08 | Mine winch preventing from magnifying slip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201952155U true CN201952155U (en) | 2011-08-31 |
Family
ID=44496277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120058379 Expired - Lifetime CN201952155U (en) | 2011-03-08 | 2011-03-08 | Mine winch preventing from magnifying slip |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201952155U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102674192A (en) * | 2011-03-08 | 2012-09-19 | 淮南矿业(集团)有限责任公司 | Mining high-speed slippage preventive winch |
| CN103663221A (en) * | 2013-12-10 | 2014-03-26 | 中联重科股份有限公司 | Crane and system and method for controlling free hook-falling and winching thereof |
| CN104860222A (en) * | 2015-05-29 | 2015-08-26 | 中国一冶集团有限公司 | Override control device and method of braking system for hauling winch |
-
2011
- 2011-03-08 CN CN 201120058379 patent/CN201952155U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102674192A (en) * | 2011-03-08 | 2012-09-19 | 淮南矿业(集团)有限责任公司 | Mining high-speed slippage preventive winch |
| CN102674192B (en) * | 2011-03-08 | 2014-08-06 | 淮南矿业(集团)有限责任公司 | Mining high-speed slippage preventive winch |
| CN103663221A (en) * | 2013-12-10 | 2014-03-26 | 中联重科股份有限公司 | Crane and system and method for controlling free hook-falling and winching thereof |
| CN103663221B (en) * | 2013-12-10 | 2016-02-03 | 中联重科股份有限公司 | Hoisting crane and free off the hook winch control system thereof and method |
| CN104860222A (en) * | 2015-05-29 | 2015-08-26 | 中国一冶集团有限公司 | Override control device and method of braking system for hauling winch |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110831 Effective date of abandoning: 20140806 |
|
| RGAV | Abandon patent right to avoid regrant |